docstr: Whether this dataset supports prefetching.
docstr_tok: ["Whether","this","dataset","supports","prefetching","."]
code: def supports_prefetch(self):
      """Whether this dataset supports prefetching."""
      return any(ds.supports_prefetch for ds in self.defn.values())
  
file_path: fairseq/fairseq/data/nested_dictionary_dataset.py
imports: from collections import OrderedDict
  import torch
  from torch.utils.data.dataloader import default_collate
  from .None import FairseqDataset
label_desc: Use image node_id 7 for calling the NestedDictionaryDataset obj's underlying member method code with example usage: obj.supports_prefetch() and returns: any